---
product_id: 295768933
title: "American Standard 033643-0070A Black Rubber O-Ring Toilet Seat Disc Replacement Part"
brand: "american standard"
price: "A$51"
currency: AUD
in_stock: true
reviews_count: 5
url: https://www.desertcart.com.au/products/295768933-american-standard-033643-0070a-black-rubber-o-ring-toilet-seat
store_origin: AU
region: Australia
---

# 3/4 in x 3 in size Rubber construction Made in USA American Standard 033643-0070A Black Rubber O-Ring Toilet Seat Disc Replacement Part

**Brand:** american standard
**Price:** A$51
**Availability:** ✅ In Stock

## Summary

> 🚽 Flush Away Worries with the Perfect Seal!

## Quick Answers

- **What is this?** American Standard 033643-0070A Black Rubber O-Ring Toilet Seat Disc Replacement Part by american standard
- **How much does it cost?** A$51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/295768933-american-standard-033643-0070a-black-rubber-o-ring-toilet-seat)

## Best For

- american standard enthusiasts

## Why This Product

- Trusted american standard brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **💧 Leak Prevention:** High-quality rubber ensures a tight seal to prevent leaks.
- • **🖤 Sleek Aesthetic:** Classic black color complements any bathroom decor.
- • **🛠️ Universal Fit:** Compatible with multiple American Standard toilet models.
- • **📦 Lightweight Design:** Weighs only 0.1 pounds for easy handling and installation.
- • **🔄 Seamless Replacement:** Easily replace your flush valve seal for optimal performance.

## Overview

The American Standard 033643-0070A Seat Disc is a high-quality rubber replacement part designed for seamless compatibility with various American Standard one-piece toilets. Weighing just 0.1 pounds and measuring 3/4 in x 3 in, this durable seal ensures leak prevention and optimal performance, making it an essential addition to your bathroom maintenance toolkit.

## Description

American Standard 033643-0070A Black Rubber O-Ring Toilet Seat Disc Replacement Part

## Features

- Replacement part
- Flush valve seal
- Rubber construction
- For use with American Standard Heritage one-piece toilet, 2031.016
- For use with American Standard Lexington one-piece round front and elongated toilets (2007.012 and 2006.014)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Rubber |
| Exterior Finish | Rubber |
| Size | 3/4 in x 3 in |
| Brand | American Standard |
| Item Weight | 0.1 Pounds |
| Colour | Black |
| Number of Pieces | 1 |
| Item Dimensions LxWxH | 10.2 x 17.8 x 4.4 Centimeters |
| Manufacturer | American Standard |
| Country of Origin | USA |
| Item model number | 033643-0070A |
| Product Dimensions | 10.16 x 17.78 x 4.45 cm; 45.36 g |
| ASIN | B003EHY04S |

## Product Details

- **Material:** Rubber
- **Outside Diameter:** 3 Inches
- **Washer Type:** Flat
- **Exterior Finish:** Rubber
- **Fastener Size:** M3

## Images

![American Standard 033643-0070A Black Rubber O-Ring Toilet Seat Disc Replacement Part - Image 1](https://m.media-amazon.com/images/I/51BmnGDp3PL.jpg)

## Available Options

This product comes in different **Colour** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Size : 3/4" x 3"
  

*by B***. on Reviewed in Canada on 30 January 2022*

This seat disc fits well on my American Standard toilet. American Standard designed this part to enable anyone to change the part in just a matter of minutes so don't buy any imitations. And there's no need to call a plumber because anyone can install this very easily. I bought this from Amazon and they provide the product as described with reasonable price and I got this product by the anticipated date. Excellent product, excellent service.

### ⭐⭐⭐⭐⭐ 







  
  
    Relief! Leaking valve fixed after many fails (w/ new 2019 addition too)
  

*by T***T on Reviewed in the United States on 21 January 2015*

OK, it is just a rubber disk but it solved my leaking American Standard old style one piece!  I had bought three different whole valves --each with rubber disks that LOOKED like this but they all leaked, some a little, some a lot. I bought the red ones at the big box "HD" store. They leaked too.  After a frustrating week of sealants and repeated swapping of parts I bought this one.  This was apparently an OEM item made by or for American Standard and it just snapped on and worked PERFECTLY.  Five Stars!Later addition: A year later I had the same problem again with another of the three American Standard model 4s in my old house.  This time I knew not to go to the big store and I ordered the same again one on Amazon.  Yikes! It didn't work this time.Since it was the same "OEM" replacement that had worked last time I was sure it had to be another problem, maybe the seal underneath the bronze base?  So I took everything apart and added a good seal of plumber's putty between the base and the porcelain. Nope. STILL didn't work; toilet refilled every 15 minutes or so.  Carefully observing the new flapper and the old pivot it appeared that the edge of the rubber disk touched the pivot just enough to push it slightly off center.  I thought of just clipping one edge, but since the disk can turn, i figured I'd get the same problem again if it turned a bit.  So I took kitchen shears and trimmed about a sixteenth or an eighth inch all around. VOILA!!! It worked instantly.  Whether it is no longer touching the pivot mount or by snipping away some of the circumferential stiffening I made it more flexible, in any case it makes a great seal now.Whew. I had almost gotten to the point of buying a new toilet.

### ⭐⭐⭐⭐⭐ 







  
  
    Rubber seal for toilet tank
  

*by B***T on Reviewed in the United States on 6 July 2023*

I noticed water coming slowly down the inside wall of the toilet. A leak like this can really raise your water bill, so I took off the tank cover and investigated. What i found was that rubber seal had hardened and needed to be replaced. To replace, I turned off the water to the tank, look for small valve under or behind tank. Once the water was turned off, then to replace seal, you gently pull off the old one (its a ball like joint), and replace it with the new one. Very straightforward, then turn on the water to insure everything is working, if everything is good, put cover back on. This is an excellent replacement..

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**Shop now:** [https://www.desertcart.com.au/products/295768933-american-standard-033643-0070a-black-rubber-o-ring-toilet-seat](https://www.desertcart.com.au/products/295768933-american-standard-033643-0070a-black-rubber-o-ring-toilet-seat)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-11*